Device for feeding sheet material.



PATENTED MAR. 12, 1907.

E. PIERCE. EE IEE FOR FEEDING SHEET MATERIAL.

APPLICATION FILED IE'Bilfi, 19 06.

3 SHEETSSHEET' l.

PATENTED MAR. 12 1907.

G. H. PIERCE. DEVICE FOR FEEDING SHEET MATERIAL.

APPLICATION FILED FEB. 12, 1906.

3 SHEETS-SHEET 2'.

WWW-5555- PATENTEIJ MARflz, 1907.

G. H. PIERCE.- DEVIOE FOR FEEDING SHEET MATERIAL APPLICATION FILED FEB. 12,1906.

3 SHEETSSHEET 3.

is fed unrrnn STATES PATENT "oEFroE.

GEORGE n. PIERCE, or QUINCY, MASSACHUSETTS,

ASSIGNOR TO NEW ERA MACHINERY COMPANY, OF BOSTON, MASSACHUSETTS,- A CORPORATION i or NEW JERSEY.

DEVICE FOR FEEDING SHEET MATERIAL.

No. seems.

Specification of Letters Patent,

' Patented March 12', 1907.

Application filed February 12, 1906. Serial No. 800,621.

To altituhom it may concern: I

Be it known that I, GEORGE H. PIERoE, a citizen of the United States, residing at Quincy, in the county of Norfolk and State of Massachusetts, have invented new and useful Improvements in Devices for Feeding Sheet Material, of which the following is a specification.

This invention relates to an improved device for accurately feeding sheet material,

suchas paper, and is particularly adapted for use in 1printing-machines in which the paper cm a continuous web and isprint'ed upon in different colors at one impression.

- The oh j ect of the invention is to provide a device which will lock one of a pair of 'feed.

rolls at the end of its forward feeding movement and prevent the same from' moving ing mechanism.

following specification,

either forward or backward from the point to which said feed-roll is rotated by the feed- The invention consists in the combination and arrangement of parts set forth in the and particularly pointed out in the claims thereof.

Referring to the drawings, Figure 1 is a side elevation, partly broken away, of a por' tion of a printing-press with my improved feeding device attached thereto. Fig. 2 is a lan section, partlyin elevation, taken on inc 2 .2 of Fig. 1 and broken away. Fig. 3

- is a front elevation of a crank-arm. Fig.4 is

a side elevation of the same with shaft broken off, and Fig. 5' is a plan view. of the same with shaft broken away.

Like numerals refer to like parts throughout the several views of the drawings.

' 1n the drawings, 5 is the frame of a print- "ing press; '6;the n aindriving-sh aft journaled upon brackets 7, fast to the under side of said frame. The main feed-roll 8 is fastenedto a shaft 9, journaled to rotate in bearings lnthe sides of the frame 5. A series of small feedrolls 10 is fastened to a shaft 11,journa1ed to rotate in vertical sliding boxes 12, which are uided in ways 13, formed in brackets 14, ast to the frame 5 of the machine. The small feed-rolls 10 are idlers and coact with the large roll 8 to feed a web of paper v15 therehetween. An intermittent rotary motion is imparted to the feed-roll 8 by a pawland-ratchet mechanism consisting of a lever 16, formed of two arms 16 16 pivoted to the shaft 9 and joined together at their outer ends by a stud 17. Said arms 16 and 16 of the shaft 6 by means of a screw 33,-whi ch rotated and the block 31 together with the stud 30, will be moved toward or away from lie upon opposite sides, respectively, of a ratchetwheel- 18, fast to the shaft 9. i

A pawl 19 is held in engagement with the ratchet-wheel 18 by a spring 20, one end of which is fastened to an arm 21, fast'to the pawl 19, the other end of said spring being 'gle rigid piece 23, constituting a link, one end .of which is pivotally connected to therrn as 16' and 16 and the opposite end is pivotally connected to block 57, supported on a stud 30, fast to a sliding block 31, constructed to slide in ways 32, formedi'n the crank-arm 24 and adjustably secured to said crank arm and moved toward or away from the center is journaled to rotate in said crank-arm and has screw-threaded: engagement with said sliding block, so that by rotating the handle 34 in the proper directi on the screw 33 will be the center of the shaft 6, thus diminishing or increasing, respectively, the throw of the crank-arm and the distance to which the pawl19 will be moved over the periphery of the ratchet 18,-and consequently the distance through which the feed-roll 9 will be rotated andthe length of of the machine.

The block 57 ,to which the link 23 is pivot ally connected at one end thereof, is provided at its opposite ends with flanges 58 and 59. The flange 59 has an ear'60 integral I therewith and projecting therefrom partly across the front face of said crank-arm and 100 ,thence backwardly along the right-hand side face of said crank-arm. This rearward pro- 'ection 60 is provided with three holes 61, 62, and 63, adapted to receive a, locking-pin 64. In alinement with the hole 61 are holes 65 65, formed in the side of the crank-arm, and in alinement with the hole 62. are holes 66, and in alinement with the hole 63 are holes 67, said holes 66 and 67 being formed also in the right-hand side of the crank-arm 24. It

paper fed at each rotation will be noticed that the holes 65, 66," and 67 are not in alinement with each other, but are staggered relatively to each other, so that the pin 64 may be introduced through one of "the holes 61, 6,2,"or 6 3 and enter one of the s'eriesof holes 65, 66, or 67, respectively, for" a slight movement ofthescrew33, the sliding block- 31, stud 30," and looking plate or block-57 It' will be seen" that by the construction hereinbefore; described the ,righthand end of the link 23 may be adjusted toward or away from the median axial line ofg I the crankfshaft, G fand thusv diminish or .in-

crease, re spectively, the throw of 'the reset, roll 8 atfj'e'ach of its intermittent forward ro-- taryimovements, the blo'ck 57 being firmly locked in 'osition byrn'eans ofkthe lockingdriven by-a pawl and ratchet, I have rigidly i v-attachedfto the 'shaft'9 a locking-disk 35, provided. upon its periphery withtcorruga fast to a slide37, and-preferably formed of I "ha'rdene'dsteel, which has corrugations '39 I formed upon onefacethereof adapted to en-' 'other arm 46 fast thereto and extend ng titans-'36 and adapted to engage a plate 38,

gage theicorrugations 36 1'1pon the periphery of' the lockingdisk' 35 when said slide is movedltoward the left, as illustrated in Fig. 1.

v The slide 37 is :onstructed to slide in'ways f-formed in abracket 40, fast to the frame of the machine, and has pivotally connected at dne end thereof, as'at 41, an extensible link 42, the vother end of said link being pivotally connected to an arm 43,'fastto arock-shaft' 44, said rock-shaft j-ournaled tofirockin bearings provided in the frame '5. Said. link.

42 is made extensible by being formed in two parts 52- and 53, joined together by a right and left screw-threaded bolt 54 in a well,- known manner. Said rock-shaft has andownward'ly therefrom, and rotatably supported upon said arm is a cam-roll 47, adaptz ed to bear against the periphery of a cam 48, fast to. the main driving-shaft 6. The cylindrical slide 37 is prevented from rotating or turnin which as screw-threaded engagement with said slide and projects therefrom through'a slot 56, provided in the front side of-the,

bracket 40.

A Spiral Spring bears t ts fight-hand end, Fig. 1, against a collar 50, fast to the slide 37, and atits left-hand end in said figure against'the bottom of a reoess'51, formed'in 'the bracket 40. Said spiral spring. .49 ,encircles the slide 37 and acts to move said To J overcomeflthi's'fiefect in a feed mechanism,v

in the bracket 40 by ascrew 55,

slide away from the locki'ng disk35 and also serves to hold the cam-roll 47 in engagement The general operationof my improved device for. feeding sheet'm'ateiial is as follows: The Web of paper is placed between the feed-r0118 and the idler feed-rolls 10, and as the shaft fi 'rotates the crankarm 24through fltheilink' 23 imparts a'rocking movement to thefleirer 16 and-through the pawl 19 imparts an intermittent rotary motion .to the ratchet-wheel 18. As' soon as the ratchetwheel-18 has been rotated'to-thefull extent of the movement of'the pawl 19 the slide 37 is. moved in time by means of the cam 48 so that the corrugated surface 39 upon the plate 38engages the corrugati ons 36 upon the periphery ofvthelocking-disk and.pre'

vents saidlocking-disk-from rotating through i any greaterang e than is imparted thereto by thepawl 19 throughithe mechanism here inbeforedescribed: The cam 48 is so timed ,thatsaid rloeking-disk is held firmly in position during the returnmovement of the pawl bythe slide 37 and corrugated plate38 and is releasedfromengagement with said look- I ing-disk just'as thefpawl-19 begins its forward move-m'enhj As soon as the flpawlsl9 commences its ;.forward movement the cam 48 releases the lever 43 and -the spring 49,

moves lthe slide 37 and locking-plate 38 to- 'ward the right,,,F ig.f1,-"and .theicorrugations of said locking-'plat'e-areremoved from cont'act'with the corrugations upon the periphcry of the locking disk"35,:so thatsaid locking-di'sk is free to-bemota'ted, together with the shafts, toisf astened and the-- feed-roll 8'.

- Having thus described invention, what 3 I o 5 v cure, is

I claim, and desire by Letters Patent toser' 1. In a device for feeding'sheet materiaLa I I pair of feed-rolls, a pawl-tind-ratchetzfnechta motion-to oneof saidwrolls,a lockingdis having corrugations u on its periphery anism adapted to impart an intermittent r0 Y fast to said last-named fee -roll, a'lock-plate having corrugations uponone 1 face thereof,

'andmech'anism to move the corrugated face ofsaid lock-plate into and out of en age- 3161111) with the corrugated periphery 0 said Is v v A i v n V 2. In a device for feeding sheet material, a pair'of feed-rolls, mechanism adapted to impart an intermittent'rotary motion to one of said rolls; a lockingkd-isk having vcorrugations upon its periphery fast to said last-named j feed-roll, a] lock-slide having corrugations upon one end thereof, and mechanism to impart a reciprocatory motion to said slide to movey'the corrugated end'thereof into and peripheryfof said disk 1 l 1 '3.'-;'-In' a' device for feeding sheet material a" pairof feed-rolls, mechanism adapted-t0 im outgioffv. engagement} ,withv'the corrugated part an intermittentrotary motion to one of said rolls, a locking-disk having corrugations upon its periphery fast to said last-named feed-roll, a lock-slide having corrugations upon one end thereof, a cam-lever,- an eX tensible link connecting said slide and lever,

. and a cam adapted to impart a rocking motion to said lever and a reciprocatory motion to said slide to move the corrugated end thereof into and out of engagement with the corrugated periphery of said disk.

- 4. In a device for-feeding sheet material, a-

pair of feed-rells,=apawl-and-ratchet mechanism adapted to impart an intermittent rotary motion to one of said rolls, means to vary the ism adapted to impart an intermittent ro-.

tary motion to one of said rolls, a crank-pin operatively connected 'to said pawl-andratchet mechanism, a crank-shaft, means to adjust said crank-pin toward and away from the median axialline of said crankshaft, a locking-disk having corrugations upon its periphery fast to said last-named feed-roll, a lock-plate having corrugations upon one gated peri hery' of said disk.

6. In a evice for feeding sheet material, a

1 feed-roll, a

face thereof, and mechanism to move the corrugated face. of said lock platet into and out of engagement with the coriupair of feed-rolls, a pawl-and-ratchet mechanism adapted to impart an intermittent rotary motionto one of said rolls, a crank-pin operatively connected to said pawl-andratchet mechanism, a crank-shaft, means to adjust said crank-pin toward and away from the median axial line of said crankshaft, means to lock said crank-pin against radial movement relatively to said crankshaft, a locking-disk having corrugations upon its periphery fast to said last-named lock-plate having corrugations upon one face thereof, and mechanism to move the corrugated face of said lock-plate into and out of engagement with the corrugated periphery of said disk.

7. In a device for feeding sheet material, a

air of feed-rolls, a pawl-and-ratchet mechanism adapted to impart an intermittent rotary motion to one of said rolls, a shaft, a crank-arm fast thereto, a'crank-pin adjustable longitudinallyof said arm, a block fast to said in, means to fasten said block .to said arm, a ink operatively connecting said pin to said pawland-ratchet mechanism, a lock- 'ing-disk"'hav1ng corrugations upon its periphery fast to said last-named feed-roll, a lock-plate having corrugations upon one face thereof, and mechanism tomove the corrugated face of said lock-plate into and out of engagement with the corrugated periphery of said disk.

' In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

GEORGE H. PIERCE.

Witriessesi .CHARLES S. Goonme, ANNIE J. DAI Y. 

